Title :
Resonances in cross-phase modulation impairment in wavelength-division-multiplexed lightwave transmission
Author :
Nelson, L.E. ; Jopson, R.M. ; Gnauck, A.H. ; Chraplyvy, A.R.
Author_Institution :
Bell Labs., Lucent Technol., Holmdel, NJ, USA
fDate :
7/1/1999 12:00:00 AM
Abstract :
Cross-phase modulation impairment resonances exist in wavelength-division-multiplexed lightwave systems when channels are spaced such that there occurs an integral number of bit walkthroughs per amplifier span. We have observed these resonances in transmission through 624-km standard single-mode fiber systems having amplifier span lengths of 40, 80, or 120 km. Q measurements of a 2.5-Gb/s five-channel system over 8/spl times/80 km with +7 dBm/channel predict on-resonance bit-error rates (BER´s) that are several orders of magnitude higher than off-resonance BER´s.
Keywords :
optical fibre communication; optical modulation; phase modulation; wavelength division multiplexing; 120 km; 2.5 Gbit/s; 40 km; 624 km; 80 km; Gb/s five-channel system; Q measurements; amplifier span lengths; cross-phase modulation impairment resonances; integral number; off-resonance BER; on-resonance bit; resonances; standard single-mode fiber systems; wavelength-division-multiplexed lightwave transmission; Fiber nonlinear optics; Fluctuations; Optical amplifiers; Optical distortion; Optical fiber dispersion; Optical fiber polarization; Optical fibers; Phase distortion; Resonance; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
